A Novel Method to Pick-up Prefabricated CAD/CAM-Designed Screw-Retained Provisional Prostheses for Immediate Full-Arch Rehabilitations: Liquid Pin Technique.

Abstract

Full-arch implant therapy with immediate provisionalization is a popular procedure. Conventionally, chairside conversion of a prefabricated prosthesis or an abutment-level impression is usually required. This case report describes a novel approach to picking up a prefabricated full-arch prosthesis utilizing various digital techniques. After implant placement and bone reduction was performed using a customized surgical guide, a provisional restoration was seated on a stackable guide and relined with a lightcured material (the "liquid pin"). This material is strong enough to hold the titanium bases in place during the relining procedure yet can be quickly and completely removed from the titanium bases and multi-unit abutments following the pick-up. The liquid pin technique enables the provisional prosthesis to maintain its structural integrity, eliminates the need for a postoperative impression, and allows for minimal adjustment before delivery. Together with digital preplanning of the prosthesis, this technique streamlines the workflow for immediate full-arc provisionalization.